Finally managed to get RR running under Win11. The user interface is -- to put it mildly -- not conducive to a rapid workflow. RR is very much a programmer's product, not from a photographer. Only local RAW files can be used, as networked drives are unusable. Images are saved only as 8-bit, even as TIFs. That's a true bummer and deal-breaker, meaning any image requiring some heavy lifting, such as IR or UV, will be be badly posterised.